Automated flow measuring device including wet and dry bulb moist

Details Automated flow measuring device including wet and dry bulb moist Automated flow measuring device including wet and dry bulb moist

1995-10-19

1996-05-28

Williams, Hezron E.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73861650, 73 29020, 374148000, G01N 2562, G01F 142

Patent

active

055200486

ABSTRACT:
An improved probe useful for measuring emissions of stack gases is equipped with a means for measuring moisture content and molecular weight of stack gases. A water feed tube is provided through the distal end of the probe and is fed water via a water feed line. An electrical temperature measuring device and water soaker device having spaced apart soaker feed holes is provided near the distal end of the water feed tube while a dry tubing encases the water feed tube below the temperature measuring device. A soaker wick encases part of the water feed tube and covers all of the temperature measuring device. Finally, an internal seal is provided between the dry tubing and the temperature measuring device to prevent thermally conductive heat from reaching the temperature measuring device. This structure enables the probe to make wet bulb-dry bulb measurements of stack gases.

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Technisches MEssen Tm, vol. 48, No. 6, Jun. 1981, Munchen De, pp. 229-232, J. Wachter, A. Heneka und K. Schweizer "Automatischer Nullabneich fur Stromungssonden".
Appendix A, Title 40, United States Code of Federal Procedure, Part 60, Chapter 1, EPA Methods 1 and 2, pp. 481-509, Jul. 1, 1993.

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